[PATCH 04/11] i2c: imx: add pinctrl support
From: Dong Aisheng <hidden>
Date: 2012-04-27 08:40:57
Also in:
alsa-devel, linux-i2c
On Fri, Apr 27, 2012 at 03:02:58PM +0800, Richard Zhao wrote:
quoted hunk ↗ jump to hunk
Signed-off-by: Richard Zhao <redacted> --- arch/arm/boot/dts/imx6q-sabrelite.dts | 2 ++ arch/arm/boot/dts/imx6q.dtsi | 16 ++++++++++++++++ drivers/i2c/busses/i2c-imx.c | 9 +++++++++ 3 files changed, 27 insertions(+), 0 deletions(-)diff --git a/arch/arm/boot/dts/imx6q-sabrelite.dts b/arch/arm/boot/dts/imx6q-sabrelite.dts index 4663a4e..4e13293 100644 --- a/arch/arm/boot/dts/imx6q-sabrelite.dts +++ b/arch/arm/boot/dts/imx6q-sabrelite.dts@@ -50,6 +50,8 @@ i2c at 021a0000 { /* I2C1 */ status = "okay"; clock-frequency = <100000>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2c1_1>; codec: sgtl5000 at 0a { compatible = "fsl,sgtl5000";diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi index 2ba32e7..fe8c80d 100644 --- a/arch/arm/boot/dts/imx6q.dtsi +++ b/arch/arm/boot/dts/imx6q.dtsi@@ -390,6 +390,22 @@ reg = <0x020e0000 0x4000>; /* shared pinctrl settings */ + i2c1 { + pinctrl_i2c1_1: i2c1grp-1 { + fsl,pins = "MX6Q_PAD_EIM_D21", + "MX6Q_PAD_EIM_D28"; + fsl,hysteresis = <1>; + fsl,mux = <0x16 0x11>; + fsl,pull = <2>; + fsl,pue = <1>; + fsl,pke = <1>; + fsl,open-drain = <1>; + fsl,speed = <2>; + fsl,drive-strength = <6>; + fsl,slew-rate = <1>; + };
The pinctrl binding is changed a bit since v1. You may need to change here according to v2 or latter.
quoted hunk ↗ jump to hunk
+ }; + uart4 { pinctrl_uart4_1: uart4grp-1 { fsl,pins = "MX6Q_PAD_KEY_COL0",diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c index dfb84b7..7a52067 100644 --- a/drivers/i2c/busses/i2c-imx.c +++ b/drivers/i2c/busses/i2c-imx.c@@ -48,6 +48,7 @@ #include <linux/platform_device.h> #include <linux/clk.h> #include <linux/slab.h> +#include <linux/pinctrl/consumer.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/of_i2c.h>@@ -470,6 +471,7 @@ static int __init i2c_imx_probe(struct platform_device *pdev) struct imx_i2c_struct *i2c_imx; struct resource *res; struct imxi2c_platform_data *pdata = pdev->dev.platform_data; + struct pinctrl *pct; void __iomem *base; resource_size_t res_size; int irq, bitrate;@@ -520,6 +522,13 @@ static int __init i2c_imx_probe(struct platform_device *pdev) i2c_imx->base = base; i2c_imx->res = res; + pct = devm_pinctrl_get_select_default(&pdev->dev);
You may want to check this change will break other platforms also using this driver. Refer to: http://www.spinics.net/lists/arm-kernel/msg171538.html Regards Dong Aisheng